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MilliporeSigma
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Key Documents

1.05442

Supelco

Ammonium sulfide solution

GR for analysis

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About This Item

UNSPSC Code:
12352301
NACRES:
SE.11

vapor pressure

450 hPa ( 20 °C)

Quality Level

100

form

liquid

expl. lim.

4-46 % (v/v)

pH

9.5 (450 g/L in H2O)

transition temp

flash point 15 °C

density

0.997 g/cm3 at 20 °C

storage temp.

no temp limit

Application


  • Improved Anti-Vulcanization and Bonding Performance of a Silver Alloy Bonding Wire by a Cathodic Passivation Treatment with Palladium: This study highlights the application of ammonium sulfide solution in enhancing the anti-vulcanization and bonding properties of silver alloy bonding wires used in electronic devices. The cathodic passivation treatment using ammonium sulfide offers significant improvements in the durability and performance of materials, which is pivotal in material science and industrial manufacturing (Yang et al., 2022).

  • The roles and applications of chaotropes and kosmotropes in industrial fermentation processes: Ammonium sulfide, utilized as a chaotrope, plays a crucial role in stabilizing enzymes and proteins during fermentation processes. This application is particularly important in biotechnological and pharmaceutical industries, where enzyme stability is critical to the efficiency of bioprocesses (Timson, 2020).

  • Cobalt iontophoresis techniques for tracing afferent and efferent connections in the vertebrate CNS: While primarily focused on cobalt iontophoresis, this research outlines the potential utility of ammonium sulfide in similar neuroscientific applications. Ammonium sulfide can be used for tracing neural connections due to its effective ion transport properties, providing valuable insights into neural pathway studies (Fuller and Prior, 1975).

Analysis Note

Assay (as (NH₄)₂S from sulphide): ≥ 20 %
Chloride (Cl): ≤ 0.05 %
Ca (Calcium): ≤ 0.003 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.001 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Residue on ignition (800 °C as sulfate): ≤ 0.05 %

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B

supp_hazards

EUH031

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

59.0 °F

flash_point_c

15 °C

Certificates of Analysis (COA)

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